-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Disabled cached Unfitted evolution due to bug + testing
- Loading branch information
Showing
7 changed files
with
512 additions
and
29 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,250 @@ | ||
| using Test | ||
|
|
||
| using GridapTopOpt | ||
| using Gridap, Gridap.Geometry, Gridap.Adaptivity, Gridap.ODEs | ||
| using GridapEmbedded | ||
|
|
||
| function update_reuse!(state,reuse_new,op;zero_tF=false) | ||
| U, (tF, stateF, state0, uF, odecache) = state | ||
| odeslvrcache, odeopcache = odecache | ||
| _, ui_pre, slopes, J, r, sysslvrcaches = odeslvrcache | ||
|
|
||
| data = allocate_odecache(ode_solver,ODEOpFromTFEOp(op),tF,stateF) | ||
| odeslvrcache_new = (reuse_new, ui_pre, slopes, J, r, data[1][end]) | ||
| odecache_new = odeslvrcache_new, odeopcache | ||
| _tF = zero_tF ? 0.0 : tF | ||
| return U, (_tF, stateF, state0, uF, odecache_new) | ||
| end | ||
|
|
||
| order = 1 | ||
| n = 50 | ||
| _model = CartesianDiscreteModel((0,1,0,1),(n,n)) | ||
| cd = Gridap.Geometry.get_cartesian_descriptor(_model) | ||
| base_model = UnstructuredDiscreteModel(_model) | ||
| ref_model = refine(base_model, refinement_method = "barycentric") | ||
| model = ref_model.model | ||
| h = maximum(cd.sizes) | ||
| steps = 10 | ||
|
|
||
| reffe_scalar = ReferenceFE(lagrangian,Float64,order) | ||
| V_φ = TestFESpace(model,reffe_scalar) | ||
| φh = interpolate(x->-sqrt((x[1]-0.5)^2+(x[2]-0.5)^2)+0.25,V_φ) | ||
| velh = interpolate(x->-1,V_φ) | ||
|
|
||
| ## Trians | ||
|
|
||
| Ω = Triangulation(model) | ||
| dΩ = Measure(Ω,2*order) | ||
| Γg = SkeletonTriangulation(Ω) | ||
| dΓg = Measure(Γg,2order) | ||
| n_Γg = get_normal_vector(Γg) | ||
|
|
||
| ## ODE Solver | ||
| ode_ls = LUSolver() | ||
| ode_nl = NLSolver(ode_ls, show_trace=false, method=:newton, iterations=10) | ||
| ode_solver = GridapTopOpt.MutableRungeKutta(ode_nl, ode_ls, 0.1*h, :DIRK_CrankNicolson_2_2) | ||
|
|
||
| ## ODE Op | ||
| v_norm = maximum(abs,get_free_dof_values(velh)) | ||
| β(vh,∇φ) = vh/(1e-20 + v_norm) * ∇φ/(1e-20 + norm(∇φ)) | ||
| stiffness(t,u,v) = ∫(((β ∘ (velh,∇(φh))) ⋅ ∇(u)) * v)dΩ + ∫(0.1*h^2*jump(∇(u) ⋅ n_Γg)*jump(∇(v) ⋅ n_Γg))dΓg | ||
| mass(t, ∂ₜu, v) = ∫(∂ₜu * v)dΩ | ||
| forcing(t,v) = ∫(0v)dΩ + ∫(0*jump(∇(v) ⋅ n_Γg))dΓg | ||
| Ut_φ = TransientTrialFESpace(V_φ) | ||
|
|
||
| # Both forms constant | ||
| op = TransientLinearFEOperator((stiffness,mass),forcing,Ut_φ,V_φ; | ||
| constant_forms=(true,true)) | ||
| ode_sol = ODEs.solve(ode_solver,op,0.0,ode_solver.dt*steps,φh) | ||
| data0, state0 = Base.iterate(ode_sol) | ||
| data1, state1 = Base.iterate(ode_sol,state0) | ||
|
|
||
| # # Update φh and velh | ||
| # φh_new = FEFunction(V_φ,copy(get_free_dof_values(data1[2]))) | ||
| # velh_new = interpolate(x->-2,V_φ) | ||
| # v_norm_new = maximum(abs,get_free_dof_values(velh_new)) | ||
| # β_new(vh,∇φ) = vh/(1e-20 + v_norm_new) * ∇φ/(1e-20 + norm(∇φ)) | ||
| # stiffness_new(t,u,v) = ∫(((β_new ∘ (velh,∇(φh))) ⋅ ∇(u)) * v)dΩ + ∫(0.1*h^2*jump(∇(u) ⋅ n_Γg)*jump(∇(v) ⋅ n_Γg))dΓg | ||
| # op = TransientLinearFEOperator((stiffness_new,mass),forcing,Ut_φ,V_φ; | ||
| # constant_forms=(true,true)) | ||
| # ode_sol_new = ODEs.solve(ode_solver,op,0.0,ode_solver.dt*steps,φh_new) | ||
| # data2, state2 = Base.iterate(ode_sol) | ||
| # data3, state3 = Base.iterate(ode_sol,state2) | ||
|
|
||
| # first form non-constant | ||
| nc_op = TransientLinearFEOperator((stiffness,mass),forcing,Ut_φ,V_φ; | ||
| constant_forms=(false,true)) | ||
| nc_ode_sol = ODEs.solve(ode_solver,nc_op,0.0,ode_solver.dt*steps,φh) | ||
| nc_data0, nc_state0 = Base.iterate(nc_ode_sol) | ||
| nc_data1, nc_state1 = Base.iterate(nc_ode_sol,nc_state0) | ||
|
|
||
| data1[1] == nc_data1[1] | ||
| norm(get_free_dof_values(data1[2]) - get_free_dof_values(nc_data1[2]),Inf) | ||
|
|
||
| # first form non-constant then switch to constant | ||
| s_op = TransientLinearFEOperator((stiffness,mass),forcing,Ut_φ,V_φ; | ||
| constant_forms=(false,true)) | ||
| s_ode_sol = ODEs.solve(ode_solver,s_op,0.0,ode_solver.dt*steps,φh) | ||
| s_data0, s_state0 = Base.iterate(s_ode_sol) | ||
| s_state0_new = update_reuse!(s_state0,true) | ||
| s_data1, s_state1 = Base.iterate(s_ode_sol,s_state0_new) | ||
|
|
||
| data1[1] == s_data1[1] | ||
| norm(get_free_dof_values(data1[2]) - get_free_dof_values(s_data1[2]),Inf) | ||
|
|
||
| ######################################################## | ||
| using Gridap.FESpaces, Gridap.Polynomials | ||
| using LinearAlgebra | ||
| # TrianientLinearFEOpFromWeakForm2 | ||
| struct TransientLinearFEOpFromWeakForm2 <: TransientFEOperator{LinearODE} | ||
| forms::Tuple{Vararg{Function}} | ||
| res::Function | ||
| jacs::Tuple{Vararg{Function}} | ||
| constant_forms::BitVector | ||
| assembler::Assembler | ||
| trial::FESpace | ||
| test::FESpace | ||
| order::Integer | ||
| end | ||
|
|
||
| # Constructor with manual jacobians | ||
| function TransientLinearFEOperator2( | ||
| forms::Tuple{Vararg{Function}}, res::Function, jacs::Tuple{Vararg{Function}}, | ||
| trial, test; | ||
| constant_forms::BitVector=falses(length(forms)), | ||
| assembler=SparseMatrixAssembler(trial, test) | ||
| ) | ||
| order = length(jacs) - 1 | ||
| TransientLinearFEOpFromWeakForm2( | ||
| forms, res, jacs, constant_forms, | ||
| assembler, trial, test, order | ||
| ) | ||
| end | ||
|
|
||
| # No constructor with flat arguments: would clash with the constructors | ||
| # below with flat forms and automatic jacobians, which are more useful | ||
|
|
||
| # Constructor with automatic jacobians | ||
| function TransientLinearFEOperator2( | ||
| forms::Tuple{Vararg{Function}}, res::Function, | ||
| trial, test; | ||
| constant_forms::BitVector=falses(length(forms)), | ||
| assembler=SparseMatrixAssembler(trial, test) | ||
| ) | ||
| # When the operator is linear, the jacobians are the forms themselves | ||
| order = length(forms) - 1 | ||
| jacs = ntuple(k -> ((t, u, duk, v) -> forms[k](t, duk, v)), order + 1) | ||
|
|
||
| TransientLinearFEOperator2( | ||
| forms, res, jacs, trial, test; | ||
| constant_forms, assembler | ||
| ) | ||
| end | ||
|
|
||
| # Constructor with flat forms and automatic jacobians (orders 0, 1, 2) | ||
| function TransientLinearFEOperator2( | ||
| mass::Function, res::Function, | ||
| trial, test; | ||
| constant_forms::BitVector=falses(1), | ||
| assembler=SparseMatrixAssembler(trial, test) | ||
| ) | ||
| TransientLinearFEOperator2( | ||
| (mass,), res, trial, test; | ||
| constant_forms, assembler | ||
| ) | ||
| end | ||
|
|
||
| function TransientLinearFEOperator2( | ||
| stiffness::Function, mass::Function, res::Function, | ||
| trial, test; | ||
| constant_forms::BitVector=falses(2), | ||
| assembler=SparseMatrixAssembler(trial, test) | ||
| ) | ||
| TransientLinearFEOperator2( | ||
| (stiffness, mass), res, trial, test; | ||
| constant_forms, assembler | ||
| ) | ||
| end | ||
|
|
||
| function TransientLinearFEOperator2( | ||
| stiffness::Function, damping::Function, mass::Function, res::Function, | ||
| trial, test; | ||
| constant_forms::BitVector=falses(3), | ||
| assembler=SparseMatrixAssembler(trial, test) | ||
| ) | ||
| TransientLinearFEOpFromWeakForm2( | ||
| (stiffness, damping, mass), res, trial, test; | ||
| constant_forms, assembler | ||
| ) | ||
| end | ||
|
|
||
| # TransientFEOperator interface | ||
| FESpaces.get_test(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.test | ||
|
|
||
| FESpaces.get_trial(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.trial | ||
|
|
||
| Polynomials.get_order(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.order | ||
|
|
||
| ODEs.get_res(tfeop::TransientLinearFEOpFromWeakForm2) = (t, u, v) -> tfeop.res(t, v) | ||
|
|
||
| ODEs.get_jacs(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.jacs | ||
|
|
||
| ODEs.get_forms(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.forms | ||
|
|
||
| function ODEs.is_form_constant(tfeop::TransientLinearFEOpFromWeakForm2, k::Integer) | ||
| tfeop.constant_forms[k+1] | ||
| end | ||
|
|
||
| ODEs.get_assembler(tfeop::TransientLinearFEOpFromWeakForm2) = tfeop.assembler | ||
|
|
||
| ####### | ||
| ss_op = TransientLinearFEOperator2((stiffness,mass),forcing,Ut_φ,V_φ; | ||
| constant_forms=BitVector((false,true))) | ||
| ss_ode_sol = ODEs.solve(ode_solver,ss_op,0.0,ode_solver.dt*steps,φh) | ||
| ss_data0, ss_state0 = Base.iterate(ss_ode_sol) | ||
|
|
||
| _t = ss_data0[1] | ||
| stiff_const_form = copy(ss_state0[2][5][1][4]) # <- cache this guy | ||
|
|
||
| #... | ||
|
|
||
| us = (get_free_dof_values(ss_data0[2]),get_free_dof_values(ss_data0[2])) | ||
| order = get_order(ss_op) | ||
| Ut = get_trial(ss_op) | ||
| # U = allocate_space(Ut) | ||
| # Uts = (Ut,) | ||
| # Us = (U,) | ||
| # for k in 1:order | ||
| # Uts = (Uts..., ∂t(Uts[k])) | ||
| # Us = (Us..., allocate_space(Uts[k+1])) | ||
| # end | ||
|
|
||
| _odeopcache = ss_state0[end][end][end] | ||
| Us = () | ||
| for k in 0:get_order(ss_op) | ||
| Us = (Us..., evaluate!(_odeopcache.Us[k+1], _odeopcache.Uts[k+1], _t)) | ||
| end | ||
|
|
||
| uh = ODEs._make_uh_from_us(ss_op, us, Us) | ||
| du = get_trial_fe_basis(Ut_φ) | ||
| V = get_test(ss_op) | ||
| v = get_fe_basis(V) | ||
|
|
||
| jacs = ODEs.get_jacs(ss_op) | ||
| jac = jacs[1] | ||
| dc = jac(_t, uh, du, v) | ||
| matdata = collect_cell_matrix(Ut, V, dc) | ||
| LinearAlgebra.fillstored!(stiff_const_form, zero(eltype(stiff_const_form))) | ||
| assemble_matrix_add!(stiff_const_form, get_assembler(ss_op), matdata) | ||
|
|
||
| ## Update | ||
| new_const_forms = (stiff_const_form,ss_state0[end][end][end].const_forms[2]) | ||
| ss_state0[end][end][end].const_forms = new_const_forms | ||
|
|
||
| ss_state0_new = update_reuse!(ss_state0,true) | ||
| ss_op.constant_forms[1] = true | ||
| ss_data1, ss_state1 = Base.iterate(ss_ode_sol,ss_state0_new) | ||
|
|
||
| data1[1] == ss_data1[1] | ||
| norm(get_free_dof_values(data1[2]) - get_free_dof_values(ss_data1[2]),Inf) | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.